A347927 - cp's OEIS frontend

A347927 a(n) is the number of reduced Latin trapezoids of height 3, whose top row has n boxes, the middle row has n+1 boxes, and the bottom row has n+2 boxes.

n	a(n)
1	1
2	6
3	68
4	1670
5	67295
6	3825722
7	285667270
8	26889145828
9	3102187523467
10	429700007845870
11	70303573947346474
12	13405343287124139802
13	2945521072579394529097
14	738633749151050116349946
15	209620243382776121032416188
16	66830750007674204750148252472
17	23780886787936166425634118631117

[1, 6, 68, 1670, 67295, 3825722, 285667270, 26889145828, 3102187523467, 429700007845870, 70303573947346474, 13405343287124139802, 2945521072579394529097, 738633749151050116349946, 209620243382776121032416188, 66830750007674204750148252472, 23780886787936166425634118631117]

cp's OEIS Frontend

A347927 a(n) is the number of reduced Latin trapezoids of height 3, whose top row has n boxes, the middle row has n+1 boxes, and the bottom row has n+2 boxes.

Table of values

List of values